Lighting Control Relays: Air Contact - Special Series
Special series relays were derived from purpose-specific custom requirements, but two more standard products resulted: Service Point and Group Lighting.
Service Point I and Service Point II primarily consist of multiple distribution branch circuit breakers protected by a primary disconnect breaker in a panel board configuration. These configurations are used in multicircuit lighting projects by the Department of Transportation and others.
Group lighting control (RLY-CSD) consists primarily of an RLY relay controlling a single-phase Trinetics oil or vacuum switch on the primary side of one or more lighting transformers. This primary-side switching is popular where one control for multiple transformer lighting circuits is required, such as ballpark lighting or other wide area lighting configurations.
Specification
- Voltage ratings: 120V, 240V, or 480V
- Load ratings: 30A, 60A, or 100A
- Poles: 1-pole or 2-pole
- Protection: Fused or breaker
- Case: Aluminum, molded, or steel
- Control: Photocell or external control circuit
Product Selection
Service Point I

Service Point I may be used as a component for constructing a larger, custom Service Point II distribution panel or as a stand-alone configuration.
Outline Drawing of Service Point I
Wiring Diagram of Service Point I
Service Point II
As a stand-alone lighting control distribution panel, the Service Point II provides complete protection for your distribution lighting requirements.
Outline Drawing of Service Point II
Wiring Diagram of Service Point II
RLY-CSD
The combination of the RLY lighting control relay and the CSD oil switch (or other Trinetics switch) provides primary voltage switching of a single or multiple transformers in lighting circuits for ballparks or other situations requiring wide area lighting.
Accessories
Consult your Trinetics representative for further details or if factory repair is required.

